Due to poor planning, traffic, getting lost etc., you arrive at the race much later than you'd hoped. You can fix this situation by working backwards from your race start in your head and eliminating all your "want to do" items such as stretching, warm-up, early seeding, etc. Focus on the critical stuff such as fuel, getting your gear on and settled properly, and taking care of any last minute issues first. You can warm up as the race starts but you can't get dressed after it starts.