Not insulting at all.
Strangely, some people do manage to miss such things as bad waether warnings. My then boss slept through the Great Storm of 1987 in the UK, had no problems driving to work, and did not find out til later what had happened. I meanwhile was stuck in South East London, after a sleepless night due to the noise, with no electricity, no phone, (texting had not been invented) and no public transport, and trees blocking roads. Bosslady realised why I could not make it, but there are some, employees as well as bosses, who do the "I got here through 20 foot snowdrifts, so why couldn't you?"