Depends on service. If it's snowy and they get here in under 30 minutes then like $5. If they take over an hour none.
Once I had a delivery driver take 2 hours, I shit you not. I called the restaurant after an hour and asked "where's the pizza I ordered?" And got the response "....we sent it out 40 minutes ago." They told me they'd call me back. They did promptly, said that the driver got lost but he was on his way now. I called back 30 minutes later. "Hes still no there yet, we'll call him again." He got lost again. Over a half hour after that he shows up. "Sorry it took so long man, your house is hard to find." "Yeah man, I know how hard it is to look at a map and find a main road." Then the dude just looked at the ground the whole time, wouldn't make eye contact. I checked the pizza...Not only is it cold but it's the wrong pizza. I ordered a veggie supreme, they gave me a supreme. I told him, "This is cold, it's wrong, and it's over 2 hours late, I don't want this. I'm ordering from someone else." Right after I shut the door the store manager called me back, I told him what happened and he told me, "don't order from someone else yet, give me 15 minutes." Within 15 minutes he was at my front door with the right pizza. Not only that, but the dude comped me on it, and have me a $20 credit to the store. So not only my worst/funniest experience with pizza deliveries, but also my best. I tipped the manager $5 lol.