Go, allow your friends to assist you, & I'd definitely get a wheelchair & a cane. Wal-Mart has adjustable canes that aren't expensive. You should be able to roll the wheels yourself with a little practice, so if you can't keep up with them, or want to move over to the side while crowds go through, they can come back for you. Carry ice packs in a cooler in case your foot & leg swell. You can put the leg up in the back seat of the vehicle on the way home. If they gave you pain meds, make sure to pack that, also. Your friends can make pics & you can look at them later in the week.
Please be careful, but I'm sure you'll be OK & have a great time. Be sure to post pics once you're feeling better.