Hail<br>Tim drove an expensive car. Tim was driving across the country. Tim entered a hail storm. Tim did not want to damage his nice car. Tim parked under an underpass and waited for the storm to pass.
Tim parked under an underpass, and then a hail storm started.
Tim entered a hail storm and then parked under an underpass -- reversing the order of events fooled the model, because the events are individually correct. 
( z1 and :op ( z2 park :ARG0 ( z3 person :name ( z4 name :op "Tim" ) ) :ARG2 ( z5 under :op ( z6 underpass ) ) ) :op ( z7 start :ARG1 ( z8 storm :mod ( z9 hail ) ) :time ( z10 then ) ) )